QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3md

1 km WNW of Aguada, Puerto Rico

· 8.4 km deep · released about 1.3 tons of TNT

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10 km30 km60 km120 km N Aguada Municipio 2 kmRincón Municipio 7 kmAguadilla Municipio 12 kmMoca Municipio 13 kmAñasco Municipio 13 kmIsabela Municipio 23 kmSan Sebastián Municipio 25 kmHormigueros Municipio 29 kmLas Marías Municipio 29 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 3.3 (md)
Depth
8.4 km below the surface
Felt
no reports yet
Nearest
Aguada Municipio, 2 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 782 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,100× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.7× more

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 18.3827, -67.2002. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguada Municipio, PR 2 km (1 mi) WNW of here earthquakes near Aguada Municipio
Rincón Municipio, PR 7 km (4 mi) NE of here earthquakes near Rincón Municipio
Aguadilla Municipio, PR 12 km (8 mi) SSW of here earthquakes near Aguadilla Municipio
Moca Municipio, PR 13 km (8 mi) W of here earthquakes near Moca Municipio
Añasco Municipio, PR 13 km (8 mi) NW of here earthquakes near Añasco Municipio
Isabela Municipio, PR 23 km (14 mi) WSW of here earthquakes near Isabela Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

26 earthquakes have been recorded within 50 km since this one.

  1. 2.8 8 km SSW of Lares, Puerto Rico
  2. 2.4 5 km ESE of Lajas, Puerto Rico
  3. 3.0 12 km N of Hatillo, Puerto Rico
  4. 2.2 8 km NNW of Puerto Real, Puerto Rico
  5. 2.2 6 km N of San Germán, Puerto Rico
  6. 2.4 2 km E of La Parguera, Puerto Rico
  7. 2.3 2 km S of Liborio Negron Torres, Puerto Rico
  8. 2.6 25 km NNE of Isabela, Puerto Rico
  9. 2.9 21 km W of Rincón, Puerto Rico
  10. 3.1 4 km SSE of La Playa, Puerto Rico
  11. 2.3 6 km W of Maricao, Puerto Rico
  12. 3.0 27 km NW of San Antonio, Puerto Rico
  13. 2.8 24 km WNW of Rincón, Puerto Rico
  14. 2.9 15 km SW of Stella, Puerto Rico
  15. 2.6 2 km E of La Parguera, Puerto Rico

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.